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| Criterion |  UX Design Storyboarding |  Operations 5 Whys |  Operations A3 Problem Solving |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When a usage scenario needs to become understandable early, it condenses situations, context, and flow into a legible sequence. It helps check concept ideas before anything gets built. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-90 min | 15-30 min | 45-90 min | 1-6 Wochen |
Participantsdifferent | 1-8 | 2-6 | 2-5 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Storyboard, Concept Narrative, Testable Assumptions | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | VisualizationConceptsSequencePrototype | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations | QualityProblem solvingRoot cause |